Improved machine for forming corn ices of sheet metal



STATES Ntra JOHN LEE, OF BOLIVAR, OHIO.

IMPROVED MACHINE FOR FORMING CORNICESOFSHEET METAL.

Specification forming part of Letters Patent No. 2,6`76, dated June l2, 1860.

T0 all whom, t may concern:

Be it known that I, JOHN LEE, of Bolivar, in the county of Tuscarawas, in the State of Ohio, have invented certain new and useful Improvements in Machines for Forming Oornices and Ornamental Gutters out of Sheet Metal;

- struction and operation.

Figure l is a perspective view. Fig. 2 is a cross Vertical section; Fig. 3, the rib or die for forming the ogee or other curves desired; Fig. 4, the brake or folder; Fig. 5, the roller with the grooved rib for fastening` the metal to the roller; Fig. 6, a rib to be attached to the roller when forming the ovalo. Fig 7 is a bead attached to the slide E, Fig. 8, end view of Fig. 3.

A is the frame.

A/ is the adjustable supporters bearing the pressure of the machine when at work. By their adjustability they can be moved out of the way, so that the bottom with all the part-s attached can be revolved.

B and B are adjustable braces for changing the machine to any required length by means of the screws and slots in said braces.

B2 is the revolving supports.

D is the roller on which the sheet metal is bent, and to which the various sections (shown in Figs. 3, 5, and 8) are attached as desired.

D is a key let into roller D for the purpose of springing it a little out of line, so that when the pressure caused by bending the meta-l is brought on it, it will become straight, the pressure being equalized by the key.

E is the adjustable slide-board, attached to main bottom M in Fig. 2 by screws d and slots in which said screws are set, so that, by handle F, together with these screws and slots, the whole is moved to or `from the roller, as required.

a is an adjustable rib fastened to roller D by hooks b on the roller and slots in the rib, as seen in Fig. 5. This arrangement is siniilanto that described in my patent of October 8, 1850, except that then the hooks were on the rib and the slots in the-roller. I prefer the device now represented. Y

c are hooks for supporting the folder or brake H and H on slide E, and for preventing it from springing by the pressure.

e represents slots in board F, in which hooks on brake H catch. There are two sets of these slots, so that the brake can be set in two positions. NVhen I wish to give the ovolo curve to the trough or cornice, the brake is set in the holes nearest the roller. T he other set of slots or holes e is used when forming the ogee curve. The brake H and H, by being hinged, acts as a lever and enables meto give more force and better form by bending it over on the metal, as required.

Fig. 2 is a cross-section through the machine, showing all the parts applied, except that shown in Figs. 3 and 8, which section is applied only when strip a is removed from the roller. K

Fig. 5 shows the roller D, with strip a attached by the hooks andslots. In this machine the strip a is operated in a direction reverse to that of my patent above referred to. In this case the strip a is slid toward the handle when the metal is put under`it, thus firmly locking it down on the roller. To release the metal, the strip is slid from the handle.

The devices of my machine differ from that described in my patent of October 8, 1850, in,

first, having the hooks on the roller and the slots in thc strips; second, in letting a key or wedge, D', into the roller D 5 third, in the use of the adjustable bearings A; fourth, in the extension of the frame to admit of longer or shorter rollers, as may be desired; and, fifth, in the addition of the sections, as hereinafter described.

If I wish to make a common half-round trough, I take any required number of sheets of metal with a plain cylindrical bead on one edge. These sheets are then placed on theroller under rib a until a sufficient number is laid down to exteud'the whole length of the roller, the sheets being made to lap over each other far enough to be soldered. The strip a is then forced downward and toward the handle, thus firmly securing the metal to the roller. The slide E is then fmoved up to the roller D, which is revolved by its crank-handle g, causing the metal to pass between the roller and the slide, thus producing the halfround shape. Then, to k-eep the metal from springing, a dog catches into a ratchet ou the roller, thus holding the sheets until they are soldered together, strip a is loosened, and the united sheets of metal are removed in mass 'trom the machine and ready for use as a halfround gutter.

If I Wish to make an ornamental cornice and gutter, a solid rib, J, Fig. 6, is placed on the roller D, and the folder or brake H and H is attached to the slide E. rIhe half-round trough is now secured to the roller, as before. rIhe roller is then turned until the strip a is under slide E, which is then pressed and secured up against the roller. The roller is then turned until the rib J is forced down onto the slide E. The brake H and H is then brought forcibly down upon the metal, and the operation is completed, the result being agutter with an ovolo curve.

In order to make the ogee curve, the ribs a and J are removed and rib G, Figs. 3 and 8,

fast to the rib. I then turn the roller, bringing the bottom of the strip (t underneath the roller. rIlhe slide E is then pressed against the roller, the roller is then turned, bringing the rib G with the metal down on bead K, and forcing the brake H and H down on the rib G. I give to the Work the additional]y-ornamental curve ofthe ogee.

Having thus fully described the construction and operation of my invention, what I claim as new, and desire to secure by Letters Patent,

l. The use ofthe wedge or key D in the roller or cylinder I), operating as described, and for the purposes set forth.

2. rIhe arrangement of the adjustable braces B and B, in combination with the sliding braces Af, as set forth.

The arrangement of the slide E and brake JOHN LEE.

XVitnesses:

CHAs. B. BURcH, Jos. G. CLAYTON. 

